opencode/packages/core/test/session-title.test.ts
2026-07-13 13:44:03 -05:00

402 lines
14 KiB
TypeScript

import { expect } from "bun:test"
import { LLMClient, LLMEvent, Model, type LLMRequest } from "@opencode-ai/llm"
import { OpenAIChat } from "@opencode-ai/llm/protocols"
import { AgentV2 } from "@opencode-ai/core/agent"
import { Catalog } from "@opencode-ai/core/catalog"
import { Database } from "@opencode-ai/core/database/database"
import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
import { llmClient } from "@opencode-ai/core/effect/app-node-platform"
import { LayerNode } from "@opencode-ai/core/effect/layer-node"
import { EventV2 } from "@opencode-ai/core/event"
import { ModelV2 } from "@opencode-ai/core/model"
import { ProviderV2 } from "@opencode-ai/core/provider"
import { SessionEvent } from "@opencode-ai/core/session/event"
import { SessionMessage } from "@opencode-ai/core/session/message"
import { SessionProjector } from "@opencode-ai/core/session/projector"
import { SessionRunnerModel } from "@opencode-ai/core/session/runner/model"
import { SessionTable } from "@opencode-ai/core/session/sql"
import { SessionStore } from "@opencode-ai/core/session/store"
import { SessionTitle } from "@opencode-ai/core/session/title"
import { SessionV2 } from "@opencode-ai/core/session"
import { Project } from "@opencode-ai/core/project"
import { ProjectTable } from "@opencode-ai/core/project/sql"
import { AbsolutePath } from "@opencode-ai/core/schema"
import { Effect, Layer, Stream } from "effect"
import { testEffect } from "./lib/effect"
let requests: LLMRequest[] = []
let resolvedModels: Array<{ id: string; provider: string } | undefined> = []
let failSmallResolve = false
const model = Model.make({
id: "title-model",
provider: "test",
route: OpenAIChat.route.with({ limits: { context: 10_000, output: 1_000 } }),
})
const client = Layer.mock(LLMClient.Service)({
prepare: () => Effect.die("unused"),
stream: (request: LLMRequest) => {
requests.push(request)
return Stream.make(LLMEvent.textDelta({ id: "title", text: "Generated Title\n" }))
},
generate: () => Effect.die("unused"),
})
const models = Layer.mock(SessionRunnerModel.Service)({
resolve: (session) => {
resolvedModels.push(session.model ? { id: session.model.id, provider: session.model.providerID } : undefined)
if (failSmallResolve && session.model?.id === "mini") {
return Effect.fail(new Error("small unavailable") as never)
}
const selected = session.model
? Model.make({
id: session.model.id,
provider: session.model.providerID,
route: OpenAIChat.route.with({ limits: { context: 10_000, output: 1_000 } }),
})
: model
return Effect.succeed(SessionRunnerModel.resolved(selected))
},
resolveCatalogModel: (session, selected) => {
resolvedModels.push({ id: selected.id, provider: selected.providerID })
if (failSmallResolve && selected.id === ModelV2.ID.make("mini")) {
return Effect.fail(new Error("small unavailable") as never)
}
return Effect.succeed(
SessionRunnerModel.resolved(
Model.make({
id: selected.id,
provider: selected.providerID,
route: OpenAIChat.route.with({ limits: { context: 10_000, output: 1_000 } }),
}),
),
)
},
})
const it = testEffect(
AppNodeBuilder.build(
LayerNode.group([
Database.node,
EventV2.node,
SessionProjector.node,
SessionStore.node,
AgentV2.node,
Catalog.node,
SessionTitle.node,
]),
[
[llmClient, client],
[SessionRunnerModel.node, models],
],
),
)
const insertSession = (
id: SessionV2.ID,
model?: { id: string; providerID: string },
) =>
Effect.gen(function* () {
const { db } = yield* Database.Service
yield* db
.insert(ProjectTable)
.values({ id: Project.ID.global, worktree: AbsolutePath.make("/project"), sandboxes: [] })
.onConflictDoNothing()
.run()
.pipe(Effect.orDie)
yield* db
.insert(SessionTable)
.values({
id,
project_id: Project.ID.global,
slug: id,
directory: "/project",
title: "New session - fake",
version: "test",
...(model
? {
model: {
id: ModelV2.ID.make(model.id),
providerID: ProviderV2.ID.make(model.providerID),
},
}
: {}),
})
.onConflictDoNothing()
.run()
.pipe(Effect.orDie)
})
const prompt = (sessionID: SessionV2.ID, text: string) =>
Effect.gen(function* () {
const events = yield* EventV2.Service
const messageID = SessionMessage.ID.create()
yield* events.publish(SessionEvent.InputAdmitted, {
sessionID,
inputID: messageID,
input: { type: "user", data: { text }, delivery: "steer" },
})
yield* events.publish(SessionEvent.InputPromoted, {
sessionID,
inputID: messageID,
})
})
const enableTitleAgent = (model?: { id: string; providerID: string }) =>
Effect.gen(function* () {
const agentService = yield* AgentV2.Service
yield* agentService.transform((editor) => {
editor.update(AgentV2.ID.make("title"), (agent) => {
agent.mode = "primary"
agent.hidden = true
agent.system = "You are a title generator."
if (model) {
agent.model = {
id: ModelV2.ID.make(model.id),
providerID: ProviderV2.ID.make(model.providerID),
}
}
})
})
})
const seedSmallModel = () =>
Effect.gen(function* () {
const catalog = yield* Catalog.Service
const providerID = ProviderV2.ID.make("test")
yield* catalog.transform((catalog) => {
catalog.provider.update(providerID, () => {})
catalog.model.update(providerID, ModelV2.ID.make("main"), (model) => {
model.time.released = Date.now()
})
catalog.model.update(providerID, ModelV2.ID.make("mini"), (model) => {
model.enabled = false
model.family = ModelV2.Family.make("gpt-nano")
model.time.released = Date.now()
})
catalog.model.small.set(providerID, ModelV2.ID.make("mini"))
})
})
it.effect("generates a title from the sole user message and renames the session", () =>
Effect.gen(function* () {
requests = []
resolvedModels = []
yield* enableTitleAgent()
const sessionID = SessionV2.ID.make("ses_title_generate")
yield* insertSession(sessionID)
yield* prompt(sessionID, "Help me debug the failing build")
const store = yield* SessionStore.Service
const session = yield* store
.get(sessionID)
.pipe(Effect.flatMap((session) => (session ? Effect.succeed(session) : Effect.die("session missing"))))
const title = yield* SessionTitle.Service
yield* title.generateForFirstPrompt(session)
expect(requests).toHaveLength(1)
expect(JSON.stringify(requests[0]?.messages)).toContain("Help me debug the failing build")
const renamed = yield* store.get(sessionID)
expect(renamed?.title).toBe("Generated Title")
}),
)
it.effect("prefers the catalog small model over the session model", () =>
Effect.gen(function* () {
requests = []
resolvedModels = []
yield* enableTitleAgent()
yield* seedSmallModel()
const sessionID = SessionV2.ID.make("ses_title_small_model")
yield* insertSession(sessionID, { id: "main", providerID: "test" })
yield* prompt(sessionID, "Help me debug the failing build")
const store = yield* SessionStore.Service
const session = yield* store
.get(sessionID)
.pipe(Effect.flatMap((session) => (session ? Effect.succeed(session) : Effect.die("session missing"))))
const title = yield* SessionTitle.Service
yield* title.generateForFirstPrompt(session)
expect(resolvedModels).toEqual([{ id: "mini", provider: "test" }])
expect(String(requests[0]?.model.id)).toBe("mini")
}),
)
it.effect("prefers the title agent model over the catalog small model", () =>
Effect.gen(function* () {
requests = []
resolvedModels = []
yield* enableTitleAgent({ id: "agent-title", providerID: "test" })
yield* seedSmallModel()
const sessionID = SessionV2.ID.make("ses_title_agent_model")
yield* insertSession(sessionID, { id: "main", providerID: "test" })
yield* prompt(sessionID, "Help me debug the failing build")
const store = yield* SessionStore.Service
const session = yield* store
.get(sessionID)
.pipe(Effect.flatMap((session) => (session ? Effect.succeed(session) : Effect.die("session missing"))))
const title = yield* SessionTitle.Service
yield* title.generateForFirstPrompt(session)
expect(resolvedModels).toEqual([{ id: "agent-title", provider: "test" }])
expect(String(requests[0]?.model.id)).toBe("agent-title")
}),
)
it.effect("falls back to the session model when no small model exists", () =>
Effect.gen(function* () {
requests = []
resolvedModels = []
failSmallResolve = false
yield* enableTitleAgent()
const sessionID = SessionV2.ID.make("ses_title_session_fallback")
yield* insertSession(sessionID, { id: "main", providerID: "test" })
yield* prompt(sessionID, "Help me debug the failing build")
const store = yield* SessionStore.Service
const session = yield* store
.get(sessionID)
.pipe(Effect.flatMap((session) => (session ? Effect.succeed(session) : Effect.die("session missing"))))
const title = yield* SessionTitle.Service
yield* title.generateForFirstPrompt(session)
expect(resolvedModels).toEqual([{ id: "main", provider: "test" }])
expect(String(requests[0]?.model.id)).toBe("main")
}),
)
it.effect("falls back to the session model when small model resolution fails", () =>
Effect.gen(function* () {
requests = []
resolvedModels = []
failSmallResolve = true
yield* enableTitleAgent()
yield* seedSmallModel()
const sessionID = SessionV2.ID.make("ses_title_small_resolve_fail")
yield* insertSession(sessionID, { id: "main", providerID: "test" })
yield* prompt(sessionID, "Help me debug the failing build")
const store = yield* SessionStore.Service
const session = yield* store
.get(sessionID)
.pipe(Effect.flatMap((session) => (session ? Effect.succeed(session) : Effect.die("session missing"))))
const title = yield* SessionTitle.Service
yield* title.generateForFirstPrompt(session)
expect(resolvedModels).toEqual([
{ id: "mini", provider: "test" },
{ id: "main", provider: "test" },
])
expect(String(requests[0]?.model.id)).toBe("main")
}),
)
it.effect("uses the catalog default provider when the session has no model", () =>
Effect.gen(function* () {
requests = []
resolvedModels = []
failSmallResolve = false
yield* enableTitleAgent()
yield* seedSmallModel()
const catalog = yield* Catalog.Service
yield* catalog.transform((catalog) => {
catalog.model.default.set(ProviderV2.ID.make("test"), ModelV2.ID.make("main"))
})
const sessionID = SessionV2.ID.make("ses_title_default_provider")
yield* insertSession(sessionID)
yield* prompt(sessionID, "Help me debug the failing build")
const store = yield* SessionStore.Service
const session = yield* store
.get(sessionID)
.pipe(Effect.flatMap((session) => (session ? Effect.succeed(session) : Effect.die("session missing"))))
const title = yield* SessionTitle.Service
yield* title.generateForFirstPrompt(session)
expect(resolvedModels).toEqual([{ id: "mini", provider: "test" }])
expect(String(requests[0]?.model.id)).toBe("mini")
}),
)
it.effect("does not generate once a second user message exists", () =>
Effect.gen(function* () {
requests = []
resolvedModels = []
yield* enableTitleAgent()
const sessionID = SessionV2.ID.make("ses_title_second_message")
yield* insertSession(sessionID)
yield* prompt(sessionID, "First message")
yield* prompt(sessionID, "Second message")
const store = yield* SessionStore.Service
const session = yield* store
.get(sessionID)
.pipe(Effect.flatMap((session) => (session ? Effect.succeed(session) : Effect.die("session missing"))))
const title = yield* SessionTitle.Service
yield* title.generateForFirstPrompt(session)
expect(requests).toHaveLength(0)
const untouched = yield* store.get(sessionID)
expect(untouched?.title).toBe("New session - fake")
}),
)
it.effect("does not generate for a child session", () =>
Effect.gen(function* () {
requests = []
resolvedModels = []
yield* enableTitleAgent()
const sessionID = SessionV2.ID.make("ses_title_child")
const { db } = yield* Database.Service
yield* db
.insert(ProjectTable)
.values({ id: Project.ID.global, worktree: AbsolutePath.make("/project"), sandboxes: [] })
.onConflictDoNothing()
.run()
.pipe(Effect.orDie)
yield* db
.insert(SessionTable)
.values({
id: sessionID,
project_id: Project.ID.global,
parent_id: SessionV2.ID.make("ses_title_parent"),
slug: sessionID,
directory: "/project",
title: "Child session - fake",
version: "test",
})
.onConflictDoNothing()
.run()
.pipe(Effect.orDie)
yield* prompt(sessionID, "Do this subtask")
const store = yield* SessionStore.Service
const session = yield* store
.get(sessionID)
.pipe(Effect.flatMap((session) => (session ? Effect.succeed(session) : Effect.die("session missing"))))
const title = yield* SessionTitle.Service
yield* title.generateForFirstPrompt(session)
expect(requests).toHaveLength(0)
}),
)
it.effect("does not generate when the title agent is removed", () =>
Effect.gen(function* () {
requests = []
resolvedModels = []
const sessionID = SessionV2.ID.make("ses_title_no_agent")
yield* insertSession(sessionID)
yield* prompt(sessionID, "Help me debug the failing build")
const store = yield* SessionStore.Service
const session = yield* store
.get(sessionID)
.pipe(Effect.flatMap((session) => (session ? Effect.succeed(session) : Effect.die("session missing"))))
const title = yield* SessionTitle.Service
yield* title.generateForFirstPrompt(session)
expect(requests).toHaveLength(0)
const untouched = yield* store.get(sessionID)
expect(untouched?.title).toBe("New session - fake")
}),
)